Stump-extractor



(No Model.) 4 sfsheets-sneen 2.

J. o. SHARP.

A STUMP EXTRAGTOR, l No. 555,977. 4Pasemt'ed Mar. l10', 1896,

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(No Model.)l -3 Sheets-Sheet 3. J. C. SHARP.

STUMP EXTRAGTOR.-

No.` 555,977. Patented Ma.1'.10, 1896.

AN DREW B.GRAIIAM. PH0T0-LIT`M04 WASHINGTON. 0C.

llNiTEn STATES PATENT @E1-uen.

JOHN C. SHARP, OF DELAVAN, VISCONSN.

sTUM P-ExTRACTo R.

SPECIFICATION forming part of Letters Patent No. 555,977, dated March10, 1896.

Application filed August 2, 1895. Serial No. 558,020. (No model.)

To all whom t may concern:

Be it known that l, JOHN C. SHARP, a citizen of the United States ofAmerica, residing at Delavan, in the county of Walworth and State ofWisconsin, have invented certain new and useful Improvements inStump-EX- tractors, of which the following is a specification.

The object of my invention is to provide a cheap, handy and powerfulmachine for extracting stumps and trees; and my invention consists ofcertain details which are hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, in whichsimilar numerals and letters of reference indicate like parts, Figure lis a side elevation of my machine, showing it attached to ananchor-stump 36 and its draft-cable connected with a stump 4l to beextracted. rlhis view shows the clutch la engaged with the clutch memberon top of the draft-lever socket to rotate the drum, the u pper clutchor ratchet-wheel being shown out of engagement and the draft-lever andthe clutch-liftin g rod or wire being shown as shortcned and in brokensection. Fig. 2 is a front elevation of my machine in central transversesection, showing the bolts, hand-lever, standard and antifriction-ballsin whole form, the draft-lever and a part of the clutch-liftingmechanism being shown in broken section. Fig. 3 is a plan view of themachine, showing the draft-cable and draft-lever broken off and with apart of the draft-lever socket broken away to show the lever device forlifting the4 pawl out of engagement from the teeth on top of the drum.Fig. 4. is a view of a section of the top plate of the main frame and asection of the winding-drum with teeth on it and the pawl engaged withone of the said teeth. Fig. 5 is a plan view of the eccentric frame orcasting at the outer end of the draft-lever, said draft-lever and therod or wire for operating the clutch being shown as broken off. Fig. (lis a side elevation of the rear end of the draft-lever socket and asection of the top plate, with a part of said top plate broken away toshow the arrangement of the pawllifting lever and pawl. This view alsoshows the cam as used for lifting the pawl out of engagement, thecam-bracket being partly in section to show the coil-spring and neck orupper part-of said cam. Fig. 7 is a side elevation of the cam that isshown in end view in Fig. 6. ln Figs. 3 and G the clutch-liftingmechanism is not shown.

The main frame of my machine may be made in any shape or form and ofmetal or such other material as may be best suited to the requirementsof the case, and, as shown in this instance, it is composed of abed-plate A, preferably mounted on and bolted to transversesupporting-runners l. Said bed-plate A has a circular opening 2 in it toreceive and serve as a bearing for the lower hub, 3, of thevertically-mounted winding-drum B. The circular opening 2 may be closedat its bottom part, thus forming a cup or reservoir for containing oilfor lubricating the bearing, and in said bottom part a circular groove 4may be made as a track for the antifriction-balls 5, on which ballsrests the lower end of the drum-hub Located above the bed-plate A is thetop plate C, which may be supported and held securely in position byvertical hollow columns 6 with bolts @,passing upwardly through thebed-plate, columns and top plate. Said top plate C has a circularopening 7, through which projects the upper hub,8, of the drum B, andanswers as a bearing for said drum-hub. Surrounding the said opening 7is a collar D,

preferably cast on the top plate C, although said collar could be madeof a separate piece and bolted or otherwise securely fastened to saidtop plate. The collar D projects upwardly from the top of the top plateto serve as a pivotal bearing fo'r the circular opening 9 in thedraft-lever socket E,which draft-lever socket may in some cases have aninwardlyprojecting circular flange or lip l0, which flange should not,however, touch the drumhub to cause friction therewith, so that the drummay be reversed more easily when unwinding the draft-cable l1 therefrom.The draft-lever socket E has an opening l2 to receive the inner end ofthe draft-lever F, and said draft-lever socket E has on its top acircular row of teeth 13, thus answering as one member of a clutch forengagement with the teeth 13 of another clutch member 14, which latterclutch member is splined to slide verti- IOO cally on the upper hub, 8,of the drum into and out of engagement with the clutch member 14 on saiddraft-lever socket.

In some cases I provide teeth 15, preferably of the ratchet form shown,on the upper end of the clutch member 14 to engage with the teeth 16 ofthe ratchet-wheel or clutch member G, which is pivoted to turn looselyon the upper end of the. drum-hub 8. Said ratchet-wheel or clutch memberG may have an opening 17 to receive a hand-lever 18. The clutch member14 should have a circular groove 19 for the inwardly-projectin g lingersof the clutch-lifter II, which clutch-lifter, as shown, is pivoted inthe standard 2O on the draft-lever socket E to rock sufficiently on itspivotal bearing to raise the clutch 14. Said clutch-lifter may have arod or wire 21 attached to it and the other end of said rod or wire 21connected to a ring 22, surrounding an eccentric K,which eccentric ismounted to turn a limited distance in its frame or casting 23 bymanipulating the handle 24, to which the eccentric is secured.

The eccentric frame or casting 23 has two parallel side pieces 25,between which side pieces the eccentric is keyed on a shaft or trunnionon the handle 24, which shaft or trunnion turns in bearings in said sidepieces. Said eccentric frame or casting 23 has an opening in it toreceive the outer end of the draft-lever, to which it is bolted, and mayalso have cast on its end a ring or eye 26 as a convenient place forattachment of the horse or team. By moving the handle 24 the eccentricis thrown and either pulls on or slackens the wire 21, thus operatingthe clutch 14 as may be desired.

To prevent retrograde motion of the drum I mount a pawl L in an openingmade therefor in the top plate C, which pawl is adapted to engage withthe teeth 27 of a circular rack on the upper end of the drum. To raisethe pawl 27 out of an engagement, so the drum may be turned backward andthe draft-cable 11 unwound therefrom, I mount in another suitableopening in said top plate C a pawllifting lever N, which is pivoted ontrunnions so as to rock slightly, and one of its ends 23 lits int-o anopening 29 in the top of the pawl, as shown, and by hanging a suitableweight (not shown) on the hooked part at the outer end of saidpawl-lifting lever said end .is thereby depressed and the pawl is liftedout of engagement from the aforementioned drumteeth. To avoid thenecessity of hanging said weight on and removingit from the pawlliftinglever N, I preferably bolt or secure to the draft-lever socket a bracket31, with a vertical opening in it to receive the upper part or neck 32of a cam O, which cam may be rounded olf at its ends, as shown, to moreeasily mount the pawl-lifting lever N to depress it, and thusautomatically lift the pawl out of engagement from the drum-teeth whenthe draft-lever in its turning brings said cam into operative connectionwith said pawl-lifting lever. A cam that is capable of yielding some ormoving upwardly is preferable, in order that it may not exert a pressurethat would injure the pawl-lifting lever at a time when the pawl isstill bearing hard against the drum-tooth and not quite ready to comeout of engagement easily, and to cause the cam to thus yield I could usea coil-spring 33 on the neck of the cam and inclosed in the cam-bracket31, as shown.

In some cases I may not use the coil-spring 33, but have the sliding oryielding cam O of sufficient weight to properly depress though notinjure the pawl-lifting lever. This automatic lifting of the pawlenables the driver to unwind the draft-cable from the drum at any timewhen the cam comes in contact with the pawl-liftinglever, and withoutleaving his horse or team to otherwise get the pawl out of engagement.The end of the draft-cable 11 may be attached to the drinn in any simpleand suitable manner, but is preferably secured inside the shell of thedrum, thence leading'outwardly on a curve into the spiral groove7 or tothe face of the drum if a plain or non-grooved drum should be used.

To hold the draft-cable on the drum, I mount a roller or sleeve 34 onone of the supporting-columns 6, as shown, which sleeve holds thedraft-cable on the drum, as well as affording a rolling contact for thedraft-cable when winding on the drum. The other supporting-columns 6, asshown, may be set near enough to the drum to prevent the wound-up part'of the draft-cable from getting out of the groove when slackened. y

In operation the machine is usually anchored to a stump and may beconnected therewith in any simple and suitable manner; but, as shown inthis instance, an anchor-cable 35 is passed around the anchor-stump 36and connected with a V-shaped anchor-bail P, which anchor-bail has aneye at each of its front ends, one of which eyes is placed between apair of parallel lugs or jaws 37 on the rear part of the bed-plate, andthe otherfeye is placed between a pair of parallel jaws 37 a on the rearpart of the top plate, and are held in place by cross-pins 33 passingthrough openings therefor in said jaws, and also passing through theanchor-bail eyes. Cast on the front part of the top plate is another lugor jaw 38, with an opening 37b between it and the top-plate part proper,to receive the return end of the draft-cable when a pulley 3Q is usedfor increasing the power of the machine, as shown in the illustrations.Said outer or return end of the draft-cable is provided with an eyewhich is secured in said top-plate opening 37b by means of a cross-pin33a. In pulling smaller stumps, requiring less power, the pulley 39 isnot used and the draft-cable or its extension mayin such cases beconnected directly to the stump to be eX- tracted. The pulley 39 has aclevis 40, to which is attached the extension-piece llfL of thedraft-cable 11, said extension-piece 11"t IOO IIO

being connected to the stump il to be eX- traeted.

In a machine of this kind it is very essential to have the draft-leversocket pivotally connected with the machine, so as to turn independentlyof the drum, in order to let the horse or team step over the draft-cablewhen desired without being subject to the strain of rotating the drumwhen making a heavy pull. The pawl at such time prevents retrogrademotion of the drum and thus holds the load until it is desired toreconnect the draft-lever to the drum to rotate it and finish the pull.It is also quite essential at times to have the draft-lever stand stilland the drum turn freely or with but slight friction, in order to enablethe operator to pull out the draft-cable by hand and thus unwind it fromthe drum without the aid of the horse or team; but if the draft-levershould be pivoted to turn on the hub or shaft of the drum the weight ofthe long draft-lever would exert so much of a pry on the drum-hub orshaft that it would bind the drum and require considerable power toreverse the motion of it to unwind the draftcable therefrom; and to havethe draft-lever socket thus pivotally connected to the machine and atthe same time exert no pry on the drum nor cause any friction therewith,I pivot the draft-lever socket to the top-plate collar, as is shown inthe illustrations, the only connection of the draft-lever socket withthe drum-hub being through the medium of the clutch member lll, and thenonly when it is in engagement with the teeth of the clutch member on topof the draft-lever socket to rotate the drum. It will be understood,also, that said clutch member I4 is thrown into engagement with itsfellow member on the draftlever socket or disengaged therefrom at willby the driver, without leaving his horse or team, by simply manipulatingthe handle 24 of the eccentric K.

As it is very desirable at times to take up the slack in the draft-cablemore speedily than it can be done by the horse or team turning thedraft-lever, I provide the ratchetwheel or clutch member G to engagewith the upper teeth 15 of the clutch member 14, which latter clutchmember is always out of engagement with its fellow member on thedraft-lever socket when in engagement with the ratchet-wheel or clutchmember G, and when thus engaged with said ratchet-wheel or clutch memberG the drum may then be rotated by manipulation of the hand-lever IS, andthe slack in the draft-cable is thereby speedily taken up.

I may in some cases cut out vertical slots or openings in the top-platecollarD to lighten it, thus simply leaving a row of vertical parts orstandards surrounding the drum-hub instead of the one entire circularpiece or collar D.

As shown in the illustrations, the circular opening 9 of the draft-leversocket E for the tcp-plate collar D is located at its rear end,

with the end of the draftlever butting up against the wall of saidcircular opening; but in some cases I may attach the collar or part ofsaid' draft-lever socket that has the said circular opening in it to theside of the box part of said draft-lever socket, at its center'orpreferably at its front end, so as to get the weight of the draft-leversocket back of the center of the machine, thereby rendering the machineless liable to be tipped up by the long heavy draft-lever, the weight ofthe draft-lever being thus partly counterbalanced by the weight of therearwardly-projecting part of the draft-lever socket.

Aside from the working of the special features of my machine which arehereinbefore explained, the machine is anchored and operated in a mannersimilar to other machines of this class.

Primarily said machine is intended for ein tracting stumps and trees,but may also be used for removing buildings, logs or any other heavybodies to which a powerful pulling machine would be adapted. Forobtaining still greater power Imay of course add to the machine suchsimple and suitable gears as may be required to accomplish the purpose.

Vhile I have shown and described the preferred form of my machine, I donot wish to be limited thereto, as many modifications thereof could bemade without departing from the spirit of my invention.

Vhat I claim as my invention is l. In a stu1np-extractor, thecombination of a draft wheel or drum with a draft-cable attached to it,a main frame with bearings in its top plate and bed -plal'e for theupper and lower hubs of said drum, a draft-lever-socket bearing orcollar on said top plate projecting upwardly therefrom and surroundingthe upper hub of the drum, a draft-lever socket with apart thereofsurrounding said top-plate collar so as to make apivotal connectionthereto, and of means for connecting said draft-lever socket to theupper hub of the drum to rotate the drum when desired, all substantiallyas shown and described and for the purpose set forth.

2. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable attached to it, a main frame with bearings in its top plateand bedplate for the upper and lower hubs of said drum, a collar on saidtop plate projecting upwardly therefrom and surrounding the upper hub ofthe drum, a draftlever socket with a part thereof surrounding saidtop-plate collar so as to make a pivotal connection thereto, aninwardly-projecting circular flange on the draft-lever socket and saidflange bearing upon the top of said collar, and of means for connectingsaid draft-lever socket to the upper hub of the drum to rotate said drumwhen desired, all substantially as shown and described and for thepurpose set forth.

3. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable at- IOO IIO

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tached to it, a main frame with bearings in its top plate and bed-platefor the upper and lower hubs of said drum, a collar on said top plateprojecting upwardly therefrom and surrounding the upper hub of the drum,a draftlever socket with a part thereof surrounding said top-platecollar so as to make a pivotal connection thereto, and of one member ofa toothed clutch splined to slide on said upper drum-hub into engagementwith the teeth of another clutch member made on said draftlever socket,to rotate the drum when desired, all substantially as shown anddescribed and for the purpose set forth.

4. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable attached to it, a main frame with bearings in its top plateand bed-plate for the upper and lower hubs of'said drum, a collar onsaid top plate projecting upwardly therefrom and surrounding the upperhub of the drum, a draftlever socket with a part thereof surroundingsaid top-plate collar so as to make a pivotal connection thereto, aninwardly-projecting circular flange on the draft-lever socket, and saidflange bearing on the top of the top-plate collar, and of one member ofa toothed clutch splined to slide on the upper drum-hub into engagementwith the teeth of another clutch member made on said draft-lever socket,to

, rotate the drum when desired, all substantially as shown and describedand for the purpose set forth.

5. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable attached to it, a main frame with bearings in its top plateand bed-plate for the upper and lower hubs of said drum, a collar onsaid top plate projecting upwardly therefrom and surrounding the upperhub of the drum, a draftlever socket Witha part thereof surrounding saidtop-plate collar so as to make a pivotal connection thereto, a clutchmember splined on the upper drum-hub with teeth on the lower end of saidmember to engage with the teeth of another clutch member made on saiddraftlever socket, teeth on the upper end of said clutch member firstabove mentioned to engage with the teeth of another clutch memberpivoted on said drum-hub, and a hand-lever attached to the latter orupper clutch member, all substantially as shown and described and forthe purpose set forth.

6. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable attached to it, a main frame with bearings in its top plateand bed-plate for the upper and lower hubs of said drum, a collar onsaid top plate projecting upwardly therefrom and surrounding the upperhub of the drum, adraftlever socket with a part thereof surrounding saidtop-plate collar so as to make a pivotal connection thereto, one memberof a toothed clutch splined to slide on the upper drumhub intoengagement with the teeth of another clutch member made on saiddraft-lever socket, and of a device on the draft-lever socket foroperating said sliding clutch `member, all substantially as shown anddescribed and for the purpose set forth.

7. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable attached to it, a main frame with bearings in its top plateand bed-plate for the upper and lower hubs of said drum, a collar onsaid top plate projecting upwardly therefrom and surrounding the upperhub of the drum, a draftlever socket with a part thereof surroundingsaid top-plate collar so as to make a pivotal connection thereto, onemember of a toothed clutch splined to slide on the upper hub of the druminto engagement with the teeth of another clutch member made on thedraft-lever socket, a device on said draft-lever socket for operatingsaid sliding clutch member, a wire or connection attached to said deviceand also attached to an eccentric mounted on the outer part of thedraft-lever, and an operating lever or handle attached to saideccentric, all substantially as shown and described and for the purposeset forth.

8. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable attached to it, a main frame with bearings in its top plateand bed-plate for the upper and lower hubs of said drum, a collar onsaid top plate projecting upwardly therefrom and surrounding theupperhub of the drum, a draftlever socket with a part thereofsurrounding said top-plate collar so as to make a pivotal connectionthereto, means for connecting said draft-lever socket to the upperdrum-hub to rotate said drum when desired, and of a pawl mounted on thetop plate to engagewith teeth set on the upper end of the drum, forpreventing rctrograde motion thereof, all substantially as shown anddescribed and for the purpose set forth.

9. In a stump-extractor, the combination of a draft wheel or drum with adraft-cable attached to it, a d raft-lever pivotally connected to saidmachine, a suitable clutch device for connecting said draft-lever tosaid drum, so as to rotate the same when desired, a clutchlifting devicesuitably located on the machine, and said clutch-lifting device operatedby means of a wire or connection attached thereto, and said wire alsoattached to an eccentric suitably mounted in a frame or casting locatedon the outer part of the draft-lever, a handle or lever connected tosaid eccentric for operating the same, to pull said wire and of an eyeas a means of connection for the horse or team, on said eccentric frameor casting, all substantially as shown and described and for the purposeset forth.

l0. In a stump-extractor, the combination of a draft wheel or drum witha draft-cable attached to it, a main frame, a draft-lever suitablyconnected to said drum to rotate the same, a suitable pawl or ratchetdevice on the drum and main frame of said machine for preventingretrograde motion of the drum when desired, and of cam mechanism suit-IOO IIO

ably located on the machine so as to connect With and automatically liftand hold said paWl out of engagement from its engaging teeth when thedraft-lever reaches a fixed point in its turning, all substantially asshown and described and for the purpose set forth.

l1. In a stump-extractor, the combination of a draft Wheel or drum witha draft-cable attached to it, a main frame with a pawl mounted on thetop plate thereof, and said paWl engaging With teeth on the upper end ofthe drum, a draft-lever socket pivotally connected to said machine,means for connecting said draft-lever socket to the drum so as to rotatethe same, of a cam suitably mounted on a rotating part of the machine,and said cam adapted to engage Wit-h a suitable part connected to saidpaWl and automatically lift and hold the paWl out of engagement from itsengaging-teeth When the draft-lever of the machine reaches a fixed pointin its turning, all substantially as shown and described and for thepurpose set forth.

l2. In a stump-extractor, the combination of a main frame and a draftWheel or drum mounted to rotate therein, a draft-cable attached to thedrum, a draft-lever suitably connected to the drum to rotate the same, asuitable paWl or ratchet device on the drum and main frame to preventretrograde motion of the drum when desired, and 0f a yielding camsuitably mounted on the machine so as to connect with and automaticallylift and hold said paWl out of engagement from its engaging teeth Whenthe draft-lever reaches a fixed point in its turning, all substantiallyas shown and described and for the purpose set forth.

l13, In a stump-extractor, the combination of a main frame With a draftWheel or drum mounted to rotate therein, a draft-cable attached to saiddrum, a paWl mounted on the top plate of said main frame and adapted toengage With teeth on the upper end of the drum to prevent retrogrademotion of the drum, a draft-lever socket pivotally connected to saidmachine, means for connecting the draft-lever socket to said drum torotate the same when desired, of a yielding cam suitably located on arotating part of said machine, and said cam adapted to engage With asuitable part connected to said pawl, so as to automatically lift andhold the pawl out of an engagement from its engaging teeth when thedraft-lever has reached a fixed point in its turning, all substantiallyas shown and described and for the purpose set forth.

14. In a stump-extractor, the combination' of a main frame with a draftWheel or drum mounted to rotate therein, a draft-cable attached to saiddrum, a paWl mounted on the top plate of said main frame and adapted toengage With teeth on the drum, to prevent retrograde motion thereof, adraft-lever socket suitably connected to said drum, to rotate it, Whendesired, a paivl-lifting lever pivoted on said top plate and suitablyconnected to said paWl to lift the same, and of a cam device suitablylocated on the lever-socket of saidmachine and adapted to automaticallyengage With said pawllifting lever and cause it to lift said pawl out ofengagement from its engaging teeth, When the draft-lever has reached afixed point in its turning, all substantially as shown and described andfor the purpose set forth.

l5. In a stump-extractor, the combination of a main frame With a draftWheel or drum mounted to rotate therein, a draft-cable attached to saiddrum, a draft-lever socket pivotally connected to said machine, meansfor connecting said draft-lever socket to the drum to rotate the samewhen desired, a pawl mounted on the top plate of said main frame, andadapted to engage With teeth on the drum, to prevent retrograde motionthereof When desired, a pavvl-lifting lever pivoted on said top plateand suitably connected to said paWl to lift the same, of a yielding camdevice suitably located on said draft-lever socket and adapted toautomatically engage With said paWl-lifting lever and cause it to liftsaid paWl out of engagement from its engaging teeth when the draft-leverhas reached a fixed point in its turning, all substantially as shown anddescribed and for the purpose set forth.

16. In a stump-extractor, the combination of a main frame With aWinding-drum mounted to rotate therein, a draft-cable attached to saiddrum, a collar on the top plate of said main frame projecting upwardlytherefrom and surrounding the upper hub, of said drum, a draft-leversocket with a part thereof surrounding said top-plate collar so as t-omake a pivotal connection thereto, means for connecting said draft-leversocket to the upper drum-hub,V to rotate the drum when desired and ofantifriction-balls under the lower end of the lower hub of the drum, allsubstantially as shown and described and for the purpose set forth.

JOI-IN C. SHARP.

Witnesses:

CHAs. H. RANDoLrH, SAMUEL CALHOUN.

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